<template>
  <div>
    御剑乘风来,除魔天地间!
    {{ sd }}
    <button @click="fn">按钮</button>
  </div>
</template>
<script>
export default {
  name: '',
  props: {
    sd: {
      type: String
    }
  },
  data () {
    return {

    }
  },
  created () {
  },
  computed: {
  },
  methods: {
    fn () {
      this.$emit('update:sd', '水水水水')
    }
  }
}
</script>
<style lang='less'  scoped>
</style>
